DUAL MODE FRACTURE BASED ON LOADING RATE DURING SLIDING INDENTATION OF Si–C–N HARD COATINGS ON 304SS SUBSTRATES

A. S. Bhattacharyya and Kushal Bhattacharyya
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A. S. Bhattacharyya: Department of Metallurgical and Materials Engineering, Central University of Jharkhand, Ranchi 835205, India†Centre of Excellence in Green and Efficient Energy Technology (CoE GEET), Central University of Jharkhand, Ranchi 835205, India
Kushal Bhattacharyya: ��Department of Mechanical Engineering, Netaji Subhash Engineering College, Kolkata 700152, India

Surface Review and Letters (SRL), 2025, vol. 32, issue 09, 1-11

Abstract: Scratch tests were performed on thermal-resistant hard Si–C–N coatings deposited on steel (SS) 304, by radio frequency (RF) magnetron sputtering. The abrasion and wear properties were studied by analyzing the changing failure complexion inside the scratch showing a mixture of ductile and brittle properties. The change in loading rate caused noticeable changes in the failure mode. The plasticity was found to have a peripheral domination initially with an increase in load but was replaced by brittle failure on increasing the loading rate. The work of adhesion and wear rate were determined.

Keywords: Scratch; hard coating; Si–C–N; loading rate; wear (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0218625X24501233

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